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Click on image for the lowdown. 
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Mod | | | Forums66 Topics128,036 Posts1,055,458 Members48,422 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Nov 2005 Posts: 6,100 'Bolter | | 'Bolter Joined: Nov 2005 Posts: 6,100 | Hy topkick, the lower the numeric number, the lower the engine r.p.m. in high gear. So a 6.14 to 1 ratio would take less engine r.p.m. to attain 60 m.p.h. in high gear than a 7.17 to 1 ratio. Do you know if the 7.17 ratio is the high speed or low speed ratio of that two speed rear axle? | | |
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